贵州五指山铅锌矿田闪锌矿分散元素组成及其地质意义
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摘要
五指山铅锌矿田是川滇黔成矿区贵州境内唯一大型铅锌矿床,从北东至南西,由杜家桥、那雍枝、新麦、那润和喻家坝5个矿段组成,以那雍枝铅锌矿段规模最大。文章通过电感耦合等离子体质谱(ICP-MS)分析矿石中原生矿石单矿物闪锌矿中分散元素含量,结果表明该矿床中闪锌矿的微量元素组成复杂,富集Ge(均值为144×10~(-6))、Ga(均值为102.9×10~(-6))和贫Mn(均值为66.83×10~(-6))、In(均值为0.937×10~(-6)),其微量元素组成特征明显与夕卡岩型、喷流沉积型及岩浆热液型铅锌矿床不同,而其特征与川滇黔地区铅锌矿床(会泽和杉树林)中闪锌矿微量元素组成一致。该矿床闪锌矿富集Ge和Ga等低温成矿元素,其In/Ga比值中等,暗示其形成于中低温环境。结合矿床产出地质特征,认为五指山铅锌矿田成因与川滇黔地区铅锌矿床(会泽和杉树林)具有一致性。
Maijiaqiao Pb-Zn deposit, Nayongzhi Pb-Zn deposit, Xinmai Pb-Zn deposit, Narui Pb-Zn deposit and Yujiaba Pb-Zn deposit belong to Wuzhishan lead-zinc ore field, witch is a large-sizelead-zinc deposit in Guizhou of Sichuan-Yunnan-Guizhou Pb-Zn mineralization province. Few researchs about the trace elements in the sphalerite had been carried out. By the 1 CP-MS, the trace elements of sphalerite had been tested in this paper. The results show that the sphalerite is rich in Ge(about 144×10~(-6)), Ga(about 102.9×10~(-6)) and poor in Mn(about 66.83×10~(-6)), In(about 0.937×10~(-6)), which is different clearly with that of skarn-type,SEDEX-type and magmatic hydrothermal-type, and its characteristics and the Sichuan Yunnan Guizhou lead-zinc deposit(Huize and Shanshulin) composition of trace elements in sphalerite consistent. Sphalerite enriches low temperature metallogenic elements such as Ge and Ga, and its In/Ga ratio is medium, suggesting that it is formed in medium and low temperature environment. According to the geological characteristics of the deposit, this paper holds that the genesis of the Five Fingers Group lead zinc ore field is consistent with the lead and zinc deposits(Huize and Shanshulin) in Sichuan-Yunnan-Guizhou Pb-Zn mineralization.
Maijiaqiao Pb-Zn deposit, Nayongzhi Pb-Zn deposit, Xinmai Pb-Zn deposit, Narui Pb-Zn deposit and Yujiaba Pb-Zn deposit belong to Wuzhishan lead-zinc ore field, witch is a large-sizelead-zinc deposit in Guizhou of Sichuan-Yunnan-Guizhou Pb-Zn mineralization province. Few researchs about the trace elements in the sphalerite had been carried out. By the 1 CP-MS, the trace elements of sphalerite had been tested in this paper. The results show that the sphalerite is rich in Ge(about 144×10~(-6)), Ga(about 102.9×10~(-6)) and poor in Mn(about 66.83×10~(-6)), In(about 0.937×10~(-6)), which is different clearly with that of skarn-type,SEDEX-type and magmatic hydrothermal-type, and its characteristics and the Sichuan Yunnan Guizhou lead-zinc deposit(Huize and Shanshulin) composition of trace elements in sphalerite consistent. Sphalerite enriches low temperature metallogenic elements such as Ge and Ga, and its In/Ga ratio is medium, suggesting that it is formed in medium and low temperature environment. According to the geological characteristics of the deposit, this paper holds that the genesis of the Five Fingers Group lead zinc ore field is consistent with the lead and zinc deposits(Huize and Shanshulin) in Sichuan-Yunnan-Guizhou Pb-Zn mineralization.
引文
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陈国勇,王亮,范玉梅,郑伟.2014.贵州五指山铅锌矿田地质特征与深部找矿远景分析[C].第九届贵州省地质矿产发展战略研讨会暨贵州省地质学会2014年学术年会,127-134.
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顾雪祥,王乾,付绍洪,唐菊兴.2004.分散元素超常富集的资源与环境效应:研究现状与发展趋势[J].成都理工大学学报(自然科学版),31(1):15-21.
贵州省地矿局104地质大队,贵州省地质调查院.2006.贵州张维—五指山地区铅锌矿评价报告[R].
李发源.2003. MVT铅锌矿床中分散元素赋存状态及富集机理研究—以四川天宝山、大梁子铅锌矿床为例[D].成都:成都理工大学.
李艳军,魏俊浩.2014.铅锌矿床中微量元素富集及关键测试技术研究新进展[J].地质科技情报,(1):191-198.
李珍立,叶霖,黄智龙,念红良,周家喜.2016.贵州天桥铅锌矿床闪锌矿微量元素组成初探[J].矿物学报,(2):183-188.
刘伟,周家喜,黄智龙.2011.黔西北铅锌成矿区矿石硫化物中镉的富集规律及机制[J].矿物学报,31(3):485-490.
刘英俊.1984.元素地球化学[M].北京:科学出版社.
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涂光炽.2004.分散元素地球化学及成矿机制[M].北京:地质出版社.
王干.2013.云南会泽铅锌矿床分散元素分布特征研究[C].全国成矿理论与找矿方法学术讨论会.
王乾,安匀玲,顾雪祥,唐菊兴,钟康惠.2010.康滇地轴东缘典型铅锌矿床伴生分散元素镉锗镓赋存状态与富集规律研究[J].地球与环境,38(3):286-294.
王乾.2008.康滇地轴东缘典型铅锌矿床分散元素镉锗镓的富集规律及富集机制[D].成都:成都理工大学.
叶霖,高伟,杨玉龙,刘铁庚,彭绍松.2012.云南澜沧老厂铅锌多金属矿床闪锌矿微量元素组成[J].岩石学报,28(5):16-26.
张茂富,周宗桂,熊索菲,宫勇军,姚书振,李行.2016.云南会泽铅锌矿床分散元素的富集机制—兼论浅色闪锌矿富集Cd的原因[J].地质找矿论丛,31(1):18-28.
张羽旭,朱传威,付绍洪,周国富,覃延荣,樊海峰,温汉捷.2012.川滇黔地区铅锌矿床中锗的富集规律研究[J].矿物学报,32(1):63-67.
周家喜,黄智龙,李晓彪,周国富,刘世荣,付绍洪,郑文勤.2008.四川会东大梁子铅锌矿床锗富集于方铅矿中的新证据[J].矿物学报,28(4):473-475.
周家喜,黄智龙,周国富,李晓彪,丁伟,谷静.2009.贵州天桥铅锌矿床分散元素赋存状态及规律[J].矿物学报,29(4):471-480.
周家喜.2011.黔西北铅锌成矿区分散元素及锌同位素地球化学[D].贵阳:中国科学院地球化学研究所.
邹志超,胡瑞忠,毕献武,叶霖,武丽艳,冯彩霞,唐永永.2012.滇西北兰坪盆地李子坪铅锌矿床微量元素地球化学特征[J].地球化学,41(5):482-496.
Han R S, Liu C Q, Huang Z L, Chen J, Ma D Y, Lei L, Ma G S. 2000.Geological features and origin of the Huize carbonate-hosted Zn-Pb-(Ag)District, Yunnan,South China[J] Ore Geology Reviews,31:360-383.
Qi L,Hu J,Gregoire D C. 2000. Determination of trace elements in granites by inductively coupled plasma mass spectrometry[J]. Talanta,51:507-513.
Ye L, Cook N J, Ciohanu C L, Liu Y P, Zhamg Q, Liu T G, Gao W,Yang Y L, Danyushevskiy L. 2011. Trace and minor element in sphalerite from base metal deposits in South China:A LA-ICPMS study[J]. Ore Geology Reviews, 39:188-217.
蔡劲宏,周卫宁,张锦章.1996,江西银山铜铅锌多金属矿床闪锌矿的标型特征[J].桂林工学院学报,16(4):370-375.
曹华文,张寿庭,唐利.2013.栾川矿集区中鱼库铅锌矿床闪锌矿微量元素地球化学特征[J].矿物学报,33(1):1-2.
陈国勇,王亮,范玉梅,郑伟.2014.贵州五指山铅锌矿田地质特征与深部找矿远景分析[C].第九届贵州省地质矿产发展战略研讨会暨贵州省地质学会2014年学术年会,127-134.
陈随海,程赫明,文德潇.2012.贵州筲箕湾铅锌矿床硫化物中T1-Cd-Ga富集机制及地质意义[J].矿物学报,32(3):425-431.
付绍洪.2004.扬子地块西南缘铅锌成矿作用及分散元素镉镓锗富集规律矿床[D].成都:成都理工大学.
顾雪祥,王乾,付绍洪,唐菊兴.2004.分散元素超常富集的资源与环境效应:研究现状与发展趋势[J].成都理工大学学报(自然科学版),31(1):15-21.
贵州省地矿局104地质大队,贵州省地质调查院.2006.贵州张维—五指山地区铅锌矿评价报告[R].
李发源.2003. MVT铅锌矿床中分散元素赋存状态及富集机理研究—以四川天宝山、大梁子铅锌矿床为例[D].成都:成都理工大学.
李艳军,魏俊浩.2014.铅锌矿床中微量元素富集及关键测试技术研究新进展[J].地质科技情报,(1):191-198.
李珍立,叶霖,黄智龙,念红良,周家喜.2016.贵州天桥铅锌矿床闪锌矿微量元素组成初探[J].矿物学报,(2):183-188.
刘伟,周家喜,黄智龙.2011.黔西北铅锌成矿区矿石硫化物中镉的富集规律及机制[J].矿物学报,31(3):485-490.
刘英俊.1984.元素地球化学[M].北京:科学出版社.
司荣军.2005.云南省富乐分散元素多金属矿床地球化学研究[D].贵阳:中国科学院地球化学研究所.
涂光炽.2004.分散元素地球化学及成矿机制[M].北京:地质出版社.
王干.2013.云南会泽铅锌矿床分散元素分布特征研究[C].全国成矿理论与找矿方法学术讨论会.
王乾,安匀玲,顾雪祥,唐菊兴,钟康惠.2010.康滇地轴东缘典型铅锌矿床伴生分散元素镉锗镓赋存状态与富集规律研究[J].地球与环境,38(3):286-294.
王乾.2008.康滇地轴东缘典型铅锌矿床分散元素镉锗镓的富集规律及富集机制[D].成都:成都理工大学.
叶霖,高伟,杨玉龙,刘铁庚,彭绍松.2012.云南澜沧老厂铅锌多金属矿床闪锌矿微量元素组成[J].岩石学报,28(5):16-26.
张茂富,周宗桂,熊索菲,宫勇军,姚书振,李行.2016.云南会泽铅锌矿床分散元素的富集机制—兼论浅色闪锌矿富集Cd的原因[J].地质找矿论丛,31(1):18-28.
张羽旭,朱传威,付绍洪,周国富,覃延荣,樊海峰,温汉捷.2012.川滇黔地区铅锌矿床中锗的富集规律研究[J].矿物学报,32(1):63-67.
周家喜,黄智龙,李晓彪,周国富,刘世荣,付绍洪,郑文勤.2008.四川会东大梁子铅锌矿床锗富集于方铅矿中的新证据[J].矿物学报,28(4):473-475.
周家喜,黄智龙,周国富,李晓彪,丁伟,谷静.2009.贵州天桥铅锌矿床分散元素赋存状态及规律[J].矿物学报,29(4):471-480.
周家喜.2011.黔西北铅锌成矿区分散元素及锌同位素地球化学[D].贵阳:中国科学院地球化学研究所.
邹志超,胡瑞忠,毕献武,叶霖,武丽艳,冯彩霞,唐永永.2012.滇西北兰坪盆地李子坪铅锌矿床微量元素地球化学特征[J].地球化学,41(5):482-496.